.login{
  background: #333;
  width: 100%;
  height: 100%;
  position: relative;
}
.login .content{
  width: 500px;
  height: 300px;
  position: absolute;
  left: calc(50% - 250px);
  top: 200px;
  border: 1px solid #eee;
  background: #fff;
}
.login .content .header {
  position: relative;
}
.login .content .header .register{
  position: absolute;
  right: 10px;
  top: -10px;
  color: rgb(0, 174, 255);
  font-size: 13px;
  cursor: pointer;
}
.login .content .title{
  margin-top: 20px;
  text-align: center;
}
.login .content .table{
  width: 80%;
  margin: 0 auto;
  margin-top: 20px;
}
.login .content .submit{
  text-align: center;
}